Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
gap information » sap information, amp information, erp information
a developpement » au developpement, de developpement, le developpement
technology gap » technology 1, technology 2.2, technology 3
information up » information und, information use, information 2
rate 2.2 » rate 2.4, rate 4.2, rate 5.2
up rate » up rates
costs a » costs _, costs 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology gap information up rate 2.2 communication costs a developpement en afrique.*.